Improvement in cardi ng



Fig 2.

N'PETERS. PHOTOALXTHDGRAPHEH. WASHINGTON D CV UNITED STATES PATENTOFFICE.

CHARLES BISHOP, OF NEWTOVN, CONNECTICUT.

IMPROVEMENT EN CARDINAGMACHINES.

Specification forming part of Letters Patent No. 4,778, dated September26, 1846.

To all whom it may concern,.-

Be it known that I, CHARLES BISHOP, of Newtown, in the county of Faireldand State of Connecticut, have invented a new and useful Machine forCarding Vool, Cotton, and other Fibrous Substances; and I declare thatthe following is a full, clear, and exact description of the principleor character which distinguishes it from all other things before known,and of the manner of making, constructing, and using the same, referencebeing had to the accompanying drawings, making part of thisspecification, in which- Figure l is a perspective representation of thecarding-engine, and Fig. 2 a vertical section thereof.

The same letters indicate like parts in' all the figures.

In the carding-engines now in use the cardteeth project from cylindricalsurfaces, and the fibers to be carded are' only acted upon as thecylinder which carries them passes in succession the series of smallcylinders arranged around it, and as only a small portion of thesurfaces of these cylinders are in contact with each other the fibersare nly acted upon during a small portion of their circuit. This isobviously defective.

The object of my invention is to make the action of the card-teeth onthe fibers continuous and so to arrange them that a greater portion ofthe teeth shall be in active service than can be effected by the presentmethod; and this I effect by placing the card-teeth on a series ofendless belts which pass around rollers, with the surfaces of the beltsthus covered with teeth running in contact along the straight surfacesbetween the rollers around which they pass, which prevents thecard-teeth from converging or diverging, as when placed on curvedsurfaces.

In the accompanying drawings, A represents the frame of the machineproperly adapted to the various parts, and B B B three sets of standardsadapted-to the reception of appropriate boxes in which turn the journalsof three pairs of rollers C C, D D, E E, around which pass three endlessbelts F G H. The boxes of the upper rollers are permanentand the lowerones slidein grooves in the standards and are provided with setscrews ab c, for the purpose of distendingl der in the well-knowncarding-engine, and has the teeth bent in the direction of the arrow,which indicates the direction in which the belt moves. The teeth on thisbelt receive the ibers to be carded from the feed-rollers d cl andfeed-apron e, which are carded in passing down between this belt and theother belt G, covered with teeth in like manner as the belt F, and bentin the reverse direction of the arrow which indicates the motion of thisbelt, which is slower than the other. After the bers have been cardedbetween these two belts, they are carried around and further cardedbetween this main belt and the third'one I-I, which is much shorter thanthe other two and takes the place of the doffer in the commoncarding-engine, and from this last belt, which moves in thedirectionindicated by the arrow, the fibers are stripped or doffed bythe comb I, constructed and operatedin the usual manner. If desired, asmall roller f, covered with card-teeth, may be placed at the bottom,between the belts F and H, to take the place of the fancy used in thecommon card; but 'this may be dispensed with. Tables g h z' 7c areattached to the standards and placed within the belts to form planesurfaces to prevent them from yielding while the teeth are in action.These belts may be made of any desired length andthe number increased ordecreased to suit the kind of fibers to be carded and the judgment ofthe constructer. As the belts' begin to curve around the rollers thepoints of the teeth separate, which facilitates the delivery of thefibers, and hence fancy-rollers may be dispensed with.

The main carding-belt F should move with a yelocity equal to that givento the main carding-cylinder in the common carding-engine, or with anyother velocity suited to the judgment of the constructer or operator,but faster than the second belt G, and the velocity of the third beltshould bear about the same relation to the main belt which the dofter ofthe common carding-engine does to the carding-cylinder. These motionsare to be given by belts or cog-Wheels in manner Well known tomachinists. That I claim as my invention, and desire to secure byLetters Patent, is-

l. The method herein described of carding fibrous substances by theaction of the straight surface of a belt of cards stretched and carriedaround rollers when this is combined with one or more similar belts ofcards, substantially as herein described.

2. In combination with such belts of cards,

the tables employed for keeping their actingsurfaces in the proper lineof action, substantially as described.

CHARLES BISHOP.

Witnesses: y

ISAAC H. HAWLEY, DAVID H. BELDEN.

